线段AB与平面A斜交,AB=26CM,A,B到平面A的距离分别为7CM,17CM.求AB与平面A所成角的正弦值(一定要有图啊)不好意思吗,我就是图出不来,所以请告诉我怎样出图,但是答案有两个额,一个是5/13,一个
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![线段AB与平面A斜交,AB=26CM,A,B到平面A的距离分别为7CM,17CM.求AB与平面A所成角的正弦值(一定要有图啊)不好意思吗,我就是图出不来,所以请告诉我怎样出图,但是答案有两个额,一个是5/13,一个](/uploads/image/z/8785864-64-4.jpg?t=%E7%BA%BF%E6%AE%B5AB%E4%B8%8E%E5%B9%B3%E9%9D%A2A%E6%96%9C%E4%BA%A4%2CAB%3D26CM%2CA%2CB%E5%88%B0%E5%B9%B3%E9%9D%A2A%E7%9A%84%E8%B7%9D%E7%A6%BB%E5%88%86%E5%88%AB%E4%B8%BA7CM%2C17CM.%E6%B1%82AB%E4%B8%8E%E5%B9%B3%E9%9D%A2A%E6%89%80%E6%88%90%E8%A7%92%E7%9A%84%E6%AD%A3%E5%BC%A6%E5%80%BC%EF%BC%88%E4%B8%80%E5%AE%9A%E8%A6%81%E6%9C%89%E5%9B%BE%E5%95%8A%EF%BC%89%E4%B8%8D%E5%A5%BD%E6%84%8F%E6%80%9D%E5%90%97%2C%E6%88%91%E5%B0%B1%E6%98%AF%E5%9B%BE%E5%87%BA%E4%B8%8D%E6%9D%A5%2C%E6%89%80%E4%BB%A5%E8%AF%B7%E5%91%8A%E8%AF%89%E6%88%91%E6%80%8E%E6%A0%B7%E5%87%BA%E5%9B%BE%2C%E4%BD%86%E6%98%AF%E7%AD%94%E6%A1%88%E6%9C%89%E4%B8%A4%E4%B8%AA%E9%A2%9D%EF%BC%8C%E4%B8%80%E4%B8%AA%E6%98%AF5%2F13%2C%E4%B8%80%E4%B8%AA)
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